Why can't the app find bluetooth devices?

Question

Android

The problem is this: there is an application that searches for bluetooth devices and connects to them. On Android 5, everything is fine, but starting with Android 6, the application simply does not see any devices (although the phone itself finds them).
In doing so, I added in accordance with the new API:

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

Who had such a problem? How did you decide?

Answer 1

not only add to the manifest. But at the right time, also request and check that it was given.
https://habrahabr.ru/post/278945/